Why does streaming need to be so complex

@mapman i agree -but here is the limitation to that. Don’t think iPhone 8 or newer can stream 24/192 and secondly you will need a Apple USB camera adapter and from there a USB to SPDIF converter (my Benchmark DAC does not have USB). The converter and adapter adds so much jitter and noise that it becomes the weakest link and the process starts all over again. 

I use the camera adaptor with a Chord Mojo DAC and it sounds fine. Have you tried it? That’s the only way to know. Not a big investment. Many people (including me) use it with very high quality headphone setups as well.

You do need a compatible connection type on the dac of course.

Many things determine jitter including dac used. I believe Benchmark is pretty jitter resistant.

I think people do themselves a disservice automatically rejecting using their existing multipurpose devices as a digital source with their hifi gear. I think most might be pleasantly surprised. Easy to try and see for oneself first before investing in expensive specialty devices.

@mapman thanks. Can you confirm if iPhone can transmit 24/192? Also do you know of any decent usb to SPDIF converters? 

Op.
I think it should as I use an older iPad mini2 to do exactly as Mapman states to stream Amazon Music and Qobuz to my integrated amp via lightning to USB adapter.
It shows 192 on the screen on said 192 streaming tracks.

From what I read I’m pretty sure iphone cannot do true 24/192.....yet but can’t say for sure.

If so, its possble apps running on iphone know the limits and resample higher res sources to lower res to be able to play but not at original resolution.

Cd res streaming is pretty easy these days but higher rez streaming is still a more limited niche with arguably marginal benefits so that will be trickier.

I don’t use that specific converter but sure there are many choices that would not cost much to try on Amazon and elsewhere I would expect.

Fwiw i am one that is in the original technical camp that determined cd resolution was technically the right resolution to cover the 20-20khz range that most people are at best able to hear (Nyquist Theorum).

Also I don’t think there is much material out there of interest to me recorded, mixed, mastered, delivered and streamed at those high resolutions, Rather in most cases CD res recordings are merely upsampled and possibly processed to sound different and perhaps better to some at high res, but high res in that case does not mean more detail.

Its like watching digitally remastered TV shows from the pre hi res tv age made to look their best on high res tvs, but detail is no better than original. You can’t recover detail once lost, just dress what's there up to look better. Lipstick on a pig per-se.

So between these two things I have had very little interest in high res audio. Some day I will probably subscribe to Amazon HD and maybe care more. I would not want to miss anything even if in fact its not there in most cases.